"Next, I must plan carefully how to spend this huge sum of money."
Shen Mo was not a miser; he would not let these Spirit Stones accumulate dust in his Universe Bag. However, he had to spend them wisely. After all, this so-called large windfall was only "huge" relative to Shen Mo's previously tight financial state. He had not reached the point where he could squander freely. If he were to truly splurge, even those scions of top immortal clans, blessed with an unlimited supply of Heavenly Materials and Earthly Treasures, might not consider their resources sufficient for cultivation. The path of cultivation required a nearly infinite amount of various resources.
Shen Mo did not have the advantages of a second-generation scion of an immortal clan. Every Spirit Stone he earned was the result of blood and sweat, so he naturally needed to consider his expenditures carefully.
I can start by purchasing the various ores needed for upgrading magic artifacts in the Market.