If you see a spool in your dream, it may indicate the need to protect your privacy. It can also symbolize a kind-hearted person who helps others and benefits their lives. This dream suggests that you might be searching for someone who is worthy of your trust and can support you in various aspects of your life.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Spool" (page 407).
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)
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.