I once thought I had five senses of perceiving the world and all that it entails.
That must have been before I even heard about there being a sixth sense...
For all I know, just as the majority of human beings are blessed with five senses of perceiving the world, some may be blessed with even more powers to affect the world too.
For instance, the sense sight of perception can also be our two functioning eyes but also the mind's eye through which other visions may be witnessed through God's Blessings.
Only He truly knows what more powers He can bless anybody with...
Source
What is Inner Vision (basira)?
God Almighty says:
“Inner visions have come to you from your Lord, so whoever sees clearly, it is to the benefit of his own soul, and whoever is blind, it is to his detriment. And I am not a keeper over you.”
(Qur'ān, Sūratul Anʿam, Chapter 6, The Cattle: Verse 104).
Outwardly, these insights or inner visions (basaʾir) are demonstrations, proofs, and clarities that result from careful discernment.
Inwardly, however, insight is an inner vision (basira) that pierces through the veils of the intellect.
Inner vision (basira) perceives pure meanings (maʿani), whereas outer vision (basar) perceives receptacles (awani).
God opens the inner vision of the servant whom He loves, and a sign of that opening is the shining of the lights within the witnessing heart.
These lights continue to shine forth until they cover the bodily limbs and all directions.
Thereupon, boundaries and delimitations come to naught with respect to the servant, and he achieves pure servanthood.
The servant’s first foot upon the Path is receiving inner visions (basaʾir) and clearing away the darkness of existent things from his heart.
Thereupon the flashes (al-bawariq) and gleams (al-lawamiʿ) become manifest for him in a single flash (al-lamha).
He then becomes firmly fixed in witnessing these lights and gains firmness therein (rusukh).
That first ray of inner vision enables you to witness the proximity of the Real to you.
As such, you must observe proper courtesy during their manifestation because in that moment you are in the presence of the Generous and Noble Lord, most importantly during meditation and prayer.
Then the servant ascends to the eye of inner vision (ʿayn al-basira), which enables him to witness his own non-existence and the existence of the Real.
This eye of inner vision is directly tasted when the body of darkness passes away for you, and you subsist by the Lordly light.
Thereafter, the servant ascends from this site of witnessing to witnessing the reality of inner vision (haqq al-basira) where he comes to know the liminal reality of neither non-existence (la inʿidam) nor existence (wa-la wujud).
This is the spring source where the opposites unite and where union and separation is directly known, and where the reality of “God was and nothing is alongside Him” is directly discovered.
If the servant is able to drink from this overflowing ocean, then he stands at the podium of the very reality of inner vision (ʿayn al-basira), which is the station where he directly witnesses the existence of the Real in the presence of neither non-existence nor existence.
— Shaykh Mohamed Faouzi al-Karkari (May his secrets be sanctified)
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