culminate vs encircling

To finalize, bring to a conclusion, form the climax of. 

To reach a point at which continued progress is not possible. 

To reach a climax; to come to a decisive point, especially an end or conclusion. 

Of a heavenly body, to be at the highest point, reach its greatest altitude. 

To reach the (physical or figurative) summit, highest point, peak etc. 

encirclement