Prayaga is connected with both prayakS which means to strive and prajaAgara which means to wake. Prajaga is also the old name of Allahabad where there is a confluence of 3 Great Rivers: Ganges, Yamuna, Sarasvati It is directly connected in name with the 5 Prayags which are earlier confluences closer to the sources of these rivers. The Confluence of 3 Rivers is called a Tri-Veni ( 3 Veins) and also a Tirtha (a sacred bathing place that is usually also a crossing place). These analogies lead to a contrast between:
Prayaga - Pralaya
sarga - pralaya
Creation - Dissolution
Beginning - End
A - Y A - M