Hymnal skein
From Tardis Wiki, the free Doctor Who reference
The hymnal skein was, as the Seventh Doctor described it, "a force that holds all life together".
Ace compared the hymnal skein to "the Force" from Star Wars. While the Doctor noted that as an example of Hollywood taking from things they don't understand, he agreed that it was a useful analogy; he further described the hymnal skein as what Taoists called "the Way".
Li Chen Mei and Ginny were among the guardians of the hymnal skein. Mrs Harris could sense the skein but didn't have the understanding to manipulate it. (PROSE: Hymn of the City)