(figuratively) to seize the opportunity

Indian summer, St. Martin's summer (stretch of warm days during late autumn)

by force of circumstances, inevitably

with one's tail between one's legs

(figuratively) to come to the right place

in all sincerity, open-heartedly, wearing one's heart on one's sleeve

(informal) to make one's mouth water, to whet one's appetite, to entice, to attract

(literary) to give up what one has already got to go chasing rainbows; to lose everything because one wanted too much; to get sidetracked, to lose sight of what is important

ultimately, in the end

(informal) killer, awesome, that kicks ass