Exactly what does gnosticism consist of? ( and I want analysis, not criticism)?

For once!

Gnosticism is absolute knowledge, or claiming to have absolute knowledge, while agnosticism is admitting that one does not.

An agnostic atheist makes no claim of absolute knowledge of gods existence, but doesn't believe pending legitimate, empirical evidence.

A gnostic atheist claims they know for a 100% certain FACT that there's no god or gods.

An agnostic theist makes no claim of absolute knowledge, but believes there is a god or gods pending the refutation of the god or gods they believe in.

A gnostic theist makes the claim that they know for 100% certain FACT that a God or Gods exist.

Of course, some will say that absolute knowledge is not only impossible, but that any believe either way is presumptive, these are militant agnostics.

gnosticism simply means that you are definitely sure

there are gnostic theists and gnostic atheists

Gnosticism is a philosophical and religious movement which started in Prue-Christian times. Gnosticism involves the relational or experiential knowledge of God and of the divine or spiritual nature within us.

It became one of the three main belief systems within 1st century Christianity, and was noted for four factors by which differed from the two other branches of Christianity: Novel beliefs about Gods, the Bible and the world which differed from those of other Christian groups.

Tolerance of different religious beliefs within and outside of Gnosticism.

Lack of discrimination against women. Although Jesus treated women as equals, and Paul mostly did the same, the other Christian belief systems started to oppress women in later generations.

A belief that salvation is achieved through relational and experiential knowledge. In the words of The contemporary Gnostic Apostolic Church, humanity needs to be awakened and brought "to a realization of his true nature. Mankind is moving towards the Omega Point, the Great day when all must graduate or fall. This day is also the Day of Judgment in that only those who have entered the Path of Transfiguration and are being reborn can return to the Treasury of Light."

The movement and its literature were essentially wiped out before the end of the 5Th century CE by Catholic heresy hunters and the Roman Army. Its beliefs are currently experiencing a rebirth throughout the world, triggered in part by the discovery of an ancient Gnostic library at Nag Hammadi, Egypt in the 1940s, and the finding of the Gospel of Judas at El Minya, Egypt, in the 1970s.

The Gospel of Mary Magdalen is my favorite of the Gnostic Gospels. It speaks of a Jesus who taught about enlightenment and not asinine religious nonsense.

1. Gnosticism. A religious tradition that flourished from about 200BC to 500AD in Egypt, spreading out into Rome and Jerusalem, consisting of aspects of Egyptian Paganism, Judaism and Christianity.
2. Gnosticism. A philosophical strain found within many modern religions, where today you'll have Gnostic Christians, Gnostic Pagans and even Gnostic Buddhists.

The general theory of Gnosticism is, to put it simply and to miss many aspects of it's essence, that we can Know (Gnosis) God (or Gods) by meditating. In this way it's similar to Zen in Buddhism. (to me)

you can look that up, yourself, i don't feel like it today