Consciousness is created through experience.
Thus, “higher consciousness” is composed of and/or created by “higher experiences”.
HIgher experiences are created as a result of exposing yourself (specifically your mind — which then cascades down to your other ‘parts’) to “higher light” (of the soul) — which can be by knowledge, intelligence, study, meditation, contemplation and acts of service — which, in-turn causes what some refer to as “enlightenment”.
Ancient Wisdom teaches us to: “…hold our minds steady in the light…”
…and to follow the highest we know (or can perceive)…