Transfer or Passing of Property - Sales of Goods

Perhaps assuming like the seller has a right to sell the goods, so it like necessary to determine the precise moment the transfer of the property in goods, or like envisaged through the contract of sale, takes place. However determination is important because:

It ascertains risk in the goods pass to the buyer, whereas the goods were destroyed accidentally then it would be essential to be on familiar terms to which party has for bear the loss.

(a) It ascertains the remedies available for the parties.

(b) It is the essence of the contract of sale about that property.