Rolling the spring rolls is both an art and a skill. Start by placing a spring roll wrapper on a clean surface, positioning it like a diamond shape with one corner facing you. Spoon a portion of the vegetable filling onto the lower portion of the wrapper. Fold the bottom corner over the filling, tucking it tightly. Then, fold the left and right corners towards the center, creating an envelope shape. Finally, roll the wrapper away from you, sealing the top corner with a dab of water. Repeat this process until all the spring rolls are assembled. This technique will ensure that your spring rolls are tightly sealed and hold their shape during frying.