Awakening in a desert could mean a few things, isolation, feeled deserted, purification, emptiness, desolation, eternity,death etc. When we think of a desert it is usually filled with empty space. So it could be about creating from an empty space as you’re moving forward in life. It feels very transformative.
Stars to me always symbolize connection, unity, our connection to ourselves for we are stardust. When we see constellations we are seeing our ancient past, we are seeing our infinite nature.
A lion Serpent is interesting, i thought of the chimera? The mystical creature who is a lion with a head of a goat but has a tail of a serpent. T Also the combination of both the lion and the serpent is kinda cool because we just moved out of the sign of Leo not that long ago and the Serpent i always feel represents kundalini energy.
In general this dream feels very transformative to me. A lot of alchemy symbols intertwined. This could signify inner alchemy as well as external alchemy within your life. The lion is teh symbol of feminine energy, courage, letting go of stress, community and Strength. I would imagine a Lion serpent would be combining the two totems of the animal together. So you have the strength, feminine energy of the lion and the Kundalini energy of the Serpent, which reprsents death,rebirth, eternity. So i see this dream about a purification process you are going through, this dream bleeds transformation and awakening to me. Perhaps you are seeking inner strength through the kundalini flow. I think awakening in the desert is shown as you are awakening from the dormant soul. Awakening into the new space. the desert is just a catalyst where as you are the Fire. The phoenix in motion transforming. Big changes are coming towards you more spiritual and transformative than anything else i feel?
I hope this helps you!