Here a general idea of this aspect:
When the Black Moon Lilith is located on the MC, or conjunct the Ascendant or Sun, it is in a strongly placed position. There is a theme of banishment and exile, and internal marginalisation. We are challenged to bring our power back out of exile and if we do not, the energy becomes destructive. Part of the truth of Lilith is to be true to that energy, embracing it and finding a way to express it without alienation. Lilith also compels us to experience periodic time out or exile and spend time away from others, to renew the self, going to the metaphorical menstrual hut.
Pure Lilith energy is instinctual and demands acknowledgement, if not, there is often a heavy sacrifice. To allow and honour death, pain and grief is to make that tribute. Our society sanitises grief and pain, not allowing it its full consideration. The house placement of the Black Moon Lilith, its aspects to other planets, tell us something about what we must sacrifice and honour in the spiral cycle. We may need to go back to our childhood and look at feelings of persecution, disempowerment and work out a way to re-empower ourselves without the necessity of bullying and ‘power-over’ tactics.
The mystery of the laws of cycles is connected with Lilith, birth, harvest and death. We need to honour these cycles, especially to sacrifice and let it go, allowing something new to be born. If we hold on to it, it just loses its energy anyway. This kind of transformation can be very Plutonic.