Chasidut zu Bereschit 29:12

Genesis 29,12. “and he had a dream in ‎which a ladder was featured, etc.;” when a young man begins ‎his career (serving the Lord) he is very enthusiastic and believes ‎that by means of his service he can spiritually elevate not only his ‎immediate surroundings on earth, but even those in the celestial ‎regions. This enthusiasm helps him to intensify his efforts at ‎serving his Creator. When he feels that his serving the Lord has ‎become a mainstay of his existence, he makes G’d the focus of all ‎his thinking, and G’d in turn derives great satisfaction from him. ‎Eventually, if he continues, he eventually qualifies to become one ‎of the “carriers of the merkavah”, G’d’s chariot.‎
The word ‎ויחלום‎, from the same root as ‎ותחלימני והחייני‎ (Isaiah ‎‎38,16) “You have restored me to health and revived me,” means ‎to feel strengthened. In King Chiskiyah’s prayer recorded in the ‎Book of Isaiah, it means that the King emerged from his sickness ‎strengthened in his capacity as a servant of the Lord. He had ‎needed strength as he had been on the point of dying. Yaakov, at ‎this point in his life is also in need of ‎חיזוק‎, strengthening, so that ‎the word ‎ויחלום‎, means that he became aware of being ‎strengthened seeing he was at the beginning of his career as a ‎servant of the Lord, eventually as a patriarch of the Jewish ‎nation.‎