And therefore, the ‘sending of the nest’ is only with holy birds [and not impure-ones],xxviiiMishnah Ḥullin 12:2 who are souls that have gone wandering, to arouse mercy over them.
And that which is written of them: (Ps. 84:4) Even a bird has found a home... – this is the first reincarnation which is ‘animating-soul’ (nephesh),... and the freedom of the nest is hers... – this is the second reincarnation – of ‘spirit’∞ruḥa,... where she has placed her chicks... – this is the third reincarnation – of soul (nishmata). [in its reincarnation:... Your altars, Y”Y TZVA-OT].