For the meaning of Eminent - expansion. Harvest - determination click HERE
Line 1. Consent or confidence. The real meaning of this line is probably 'really (and joyously) sheng-sacrificing', see Harmen's excellent article.
Line 2. "Captives use the music instruments (of the yue sacrifice)." Same article.
Line 3. "Ascending to the hill settlement." Same article.
Line 4. 'To' or at Mount Qi. The offering is being carried out, it is not the act of going to do it.
Line 5. The sacrifice has been accepted. Stairs or steps. See Harmen's article. Line 6. 'Unceasing determination' might be: a determination about - or favorable for - not resting. According to Harmen this line should be "Dark sheng sacrifice. Good result when performing divinations continuously."