What Is Gnosis?
Gnosis is an altered state of consciousness where the reigns of habituated thinking give way and the possibilities of what is and what can be is widened exponentially. Gnosis to me is a sort of union in the subjective and objective perceptions that renders observer malleable and open to suggestion. "I am.. " we whisper to ourselves on a daily basis.. "Self suggestion is the best tool I've got!".

Could you go further into detail please?
The objective and subjective realities are very separated in modern culture. A merging of the two exists outside of 'time'. When suddenly realized it scares, surprises, it's very unsuspected per say.. Typically when such an experience occurs the conscious mind will cover up or explain off the occurrence. What promotes connection and union? Meditation is a good start, but it's a lifetime experience and a forever on-going process of integration.
Quieting the internal auditory sense allows other avenues of interpretation to manifest.
The benefits include an exceptional hyper-dimensional guidance system, it's all decisions from here on out. The hardest part is steering the darn thing, thus the grease on the wheel. "I am aware of a new opportunity" is a good start, but you already knew that!
This comment is better than the original post.
so what do you suggestion? Meditation is a good start, but what else? I am very interested in the subject.
In typical human fashion control of perceived 'change' is the next desire. The ego's attempts at controlling a self organizing point of perfection. That isn't to say we can't 'do' anything, instead putting you into a position of self analysis and self creation in relation to everything that is.
Many will look up to a god as a direct line to their ideals given the idea, situation, or decision at hand. Ideas have a tendency to talk back if one can listen. There are many gods, companies, ideas, that can be communicated with. Consciousness stripped of dialog and held firmly gives way to intuition as opposed to habitually perpetuated thoughts and reactions.
Having said all that, the fastest way from A (current experience) to B (desired experience) i.e. happier, a funny joke, a smile, an encounter with another, isn't always achieved by the most trodden upon trail. This leads us into the realm of usability of the art.
Meditate for 10 minutes in the morning upon waking and keep an eye out for more articles :)