1) The Son and Holy Spirit represent the Macrocosmic and Microcosmic expressions of God ie His Immanence with the microcosmic being post-causal. The Son isn't just limited to Jesus, it is 'everything' ie 'in him and through him are all things'. The holy spirit is the higher self of all of us. It's our inner 'Logos' if you will. It's what connects us and guides us back to the primordial origin. 'the first and the last' representing our metaphysical descent and ascent.
Wisdom is a notch below the holy spirit ie wisdom comes from the holy spirit. We obv know that from Revelation 2, but unfortunely the 'xtian' world misinterpreted the term 'lucifer/morning star'. venus, the morning star, was only an external symbolic representation of inner wisdom. the rising of the morning star, representing how wisdom guides us out of darkness. that inner guidance/truth is from the holy spirit and extends to wisdom.
also, no, i dont think some random voice in my head is the holy spirit, in fact i never think of the holy spirit in that way at all.
A chaper in the Quran is called 'Surah at-Tariq'
the word Tariq means
en.wikipedia.org
in otherwords it also means 'the door knocker' and hence is a reference to the holy spirit.
short chapter, have a quick read
86. At-Taariq - سورة الطارق - ( The Morning Star ) - Read Quran القران الكريم in English translation by Pickthal - SearchTruth
www.searchtruth.com
so in islam the morning star also means the 'door knocker' and is hence connected with the holy spirit..
Behold, I stand at the door and knock. If anyone hears My voice and opens the door, I will come in and dine with him, and he with Me.
biblehub.com
Here I am! I stand at the door and knock. If anyone hears my voice and opens the door, I will come in and eat with that person, and they with me.
yeh 'higher self' is the best way i can describe the holy spirit, but at the same time i dont mean some new age demon or a random voice in my head.
2) The jewish messiah and incarnation of the universal consciousness which represents the Immanence of God on the macrocosmic level, hence 'God In Jesus' but only in the Immanent sense. In extention to this, not limited to Jesus but in truth, God in 'all things' since the Logos/Son is 'all things' as i explained before.
3) fulfill prophecy, change the world, guide people, give them the 'good news of the kingdom of heaven'. nothing different here than anything other than i dont believe Jesus is a deity. God 'in him' is a state of consciousness...if people chose to worship Jesus the person they were wrong, but if they saw 'God in him' in terms of his purpose, message, actions etc then that was paert of the mystical right brain perspective of perceiving God in/through things.
obv this is personal. ive had this exchange with some literalist muslims who get bogged down into the logical side eg 'so you can see God inside DOG EXTREMENT THEN? IN YOUR TOILET'.
like the statement 'to the pure allt hings are pure' it goes without saying, this is subjective and we cant see God in everything.
oh yeh, speaking of right/left brain, as i said it relates to the passive and active side (yin and yang) of the metaphysical too. With Jesus, he was passive before..the suffering servant. The active part hasn't been fulfilled yet.
also as an extention of John 16, Mohammad represented the microcosm side, the holy spirit brought islam, the Quran etc through Mohammad in fulfillment of John 16. As suchm Mohammed represents a microcosm of Jesus too. The passive side of Jesus is what Mohammad represented in Mecca. Then there was the hijra/migration to Madina. In Madina Mohammad became the conquerer/ruler. this is one reason why a lot of muslims confuse messianic prophecy for Mohammad because they dont realise that Mohammad represents a foreshadowing of Jesus.
I get that you dont believe this, but that's because you're unfamiliar and dont really understand the core theme represented.
likewise...in Daniel 2, the rock (Jesus) will destroy the whole image by striking it's foot.
Yet on the lesser scale eg the microcosmic scale..the rise of islam literally ended babylon, persia and the byzantine empire. babylon which prophecy said would be completely destroyed, still existed when islam came there was even a church there, but islam removed it completely. the persian empire was ended forever. any other empire from there was an islamic empire and not exclusively persian. likewise the byzantine empire was ended which, i guess you could see it as an extention of rome and even greece. The only one remaining which islam has been losing to is western europe and now america..which is the last remnant of Rome but the most powerful. This represents the end times Rome..which Jesus has to destroy.