Making vows: As the Talmud states (Yevomos 20a) “The term sanctity indicates differentiation or separation, and there is a principle that you must sanctify yourself by refraining from that which is permitted to you by Torah law. The Sages decreed against secondary forbidden relations so that one would not eventually come to transgress Torah law.”
קַדֵּש עַצְמְךָ בְמותָר לָךְ “Sanctify yourself by refraining from that which is permitted to you”. This phrase is not just about abstaining but also about sanctifying. A person becomes holy and elevated through taking on vows.
The next step is that he effectuates an annulment of the vow whose source is the lofty state of ‘Chochma’ of the spiritual world of ‘Atzilus’ until he is able to effectuate an aspect of sanctity of the ‘Kodesh Hakodoshim’, the ‘Poroh Adumah’, the Chatos Water [leading to the fact] that the Torah calls the Poroh Adumah a ‘Chatos’.
With this we can also understand that which our sages have said that “The annulment of vows fly in the air and have nowhere to lean on” because the root of annulment of vows is so spiritually lofty that it is entirely beyond the worlds. For even the concept of vows is rooted in the spiritual world of ‘Atzilus’ and most certainly the annulment of vows which comes from ‘אַבָא’ (Chochma) as mentioned earlier, is rooted above the whole ‘Seder Hishtalshelus’.
This is what is meant by ‘flying in the air without anywhere to lean on’ being that they are separated from the whole of ‘Seder Hishtalshelus’ to such an extent that they are even more detached from ‘Seder Hishtalshelus’ than those matters about which it said that they are “As mountains hanging on a thread.”
