The Complete Guide to Interpreting Your Dreams

by Stearn Robinson - Tom Corbett
Here again the omen depends on the action and the details.

A full spool indicates pleasantly busy times ahead; an empty spool suggests a possible loss of status through improvidence; winding onto a spool is a sign that you may be retarding your own progress by being overcautious; unwinding from a spool predicts a new and profitable venture.

If your dream featured slipping or falling on a spool, it is warning you against indiscriminate sex relations.

The Big Dictionary of Dreams

by Martha Clarke
In the case that a spool of thread appears in a dream, this may indicate that your ideas are a bit tangled. You should let them flow without trying to limit them or solve them. The dream reflects a lack of clarity regarding a project we are about to undertake. (See THREAD and WOOL)

A silk spool is a sign of inner enrichment for the dreamer; cotton denotes poverty and complicated matters.

Islamic Dream Interpretation

by Ibn Seerin
In a dream,a spool means keeping one’s secrets, or it could represent a gracious man, or a trustworthy person who lends his help to others and benefits them in their worldly affairs.

If one sees himself carrying a spool while taking his ritual ablution in a dream, it means that he will seek the help of a righteous believer who holds fast to the rope of God Almighty. In that sense, a spool represents the element of religious life and the rope in a dream signifies religion, which is one’s connection to his Lord. Carrying a spool when performing one’s ablution in a dream means that one will be permanently cured from ills and become free from debts.

A spool in a dream also means an active servant, or a talkative son.

(Also see Ball of thread, Rope)