What is meaning of unless and until

Until mean “tab tak” and Unless mean “Jab tak”. ex:- Wait here unitl I come back.  मेरे आने तक यहीं रुको| He will not trust you unless you prove yourself. जब तक तुम अपने आप को सबित नहीं करते हो, वह तुम पर भरोसा नहीं करेगा। He read until his guest arrived अपने मेहमान के आने तक वह पढ़ता रहा।

do not use auxiliary verbs in clauses beginning with until and unless