The álsos is the sacred grove of the temple. It is the realm of the priestess and their servants and disciples - no strangers are allowed here.

Plato on Aphrodite

Socrates: And we made four divisions of the divine madness, ascribing them to four gods, saying that prophecy was inspired by Apollo, the mystic madness by Dionysus, the poetic by the Muses, and the madness of love, inspired by Aphrodite and Eros, we said was the best. We described the passion of love in some sort of figurative manner, expressing some truth, perhaps, and perhaps being led away in another direction, and after composing a somewhat plausible discourse, we chanted a sportive and mythic hymn in meet and pious strain to the honor of your lord and mine, Phaedrus, Love, the guardian of beautiful boys.

Platon, Phaedrus 265b ss.

Socrates: ‘That is rather a long story,’ she (i.e. Diotima) replied; ‘but still, I will tell it you. When Aphrodite was born, the gods made a great feast, and among the company was Resource the son of Cunning. And when they had banqueted there came Poverty abegging, as well she might in an hour of good cheer, and hung about the door. Now Resource, grown tipsy with nectar--for wine as yet there was none--went into the garden of Zeus, and there, overcome with heaviness, slept. Then Poverty, being of herself so resourceless, devised the scheme of having a child by Resource, and lying down by his side she conceived Love. Hence it is that Love from the beginning has been attendant and minister to Aphrodite, since he was begotten on the day of her birth, and is, moreover, by nature a lover bent on beauty since Aphrodite is beautiful. Now, as the son of Resource and Poverty, Love is in a peculiar case. First, he is ever poor, and far from tender or beautiful as most suppose him: rather is he hard and parched, shoeless and homeless; on the bare ground always he lies with no bedding, and takes his rest on doorsteps and waysides in the open air; true to his mother's nature, he ever dwells with want. But he takes after his father in scheming for all that is beautiful and good; for he is brave, strenuous and high-strung, a famous hunter, always weaving some stratagem; desirous and competent of wisdom, throughout life ensuing the truth; a master of jugglery, witchcraft, and artful speech. By birth neither immortal nor mortal, in the selfsame day he is flourishing and alive at the hour when he is abounding in resource; at another he is dying, and then reviving again by force of his father's nature: yet the resources that he gets will ever be ebbing away; so that Love is at no time either resourceless or wealthy, and furthermore, he stands midway betwixt wisdom and ignorance. The position is this: no gods ensue wisdom or desire to be made wise; such they are already; nor does anyone else that is wise ensue it. Neither do the ignorant ensue wisdom, nor desire to be made wise: in this very point is ignorance distressing, when a person who is not comely or worthy or intelligent is satisfied with himself. The man who does not feel himself defective has no desire for that whereof he feels no defect.’

Platon, Symposium 203b ss.