Make a loop, pull the yarn through on the hook. Yarn over. Pull through. A chain of knots, foundation.
Fold over. Push the hook through the chain. Yarn over. Pull through one. Yarn over. Pull through two.
Connecting. Form three more chains, skip one and connect the next chain with a single or a double or a triple stitch. Repeat the process as many times as the pattern demands, hoping that at some point it will all make sense.
Unravel the strings that have not yet been woven, the strings that tangled in the bag as it was carelessly bounced around. Try not to pull out the deliberate stitches in the process.