This is the 9065th most frequent Russian word.
руководствуясь
"Guided by" or "following."
In this sentence, 'руководствуясь' introduces the principles or guidelines influencing the subject's decision.
Руководствуясь принципами справедливости, он принял своё решение.
Guided by the principles of justice, he made his decision.
Here, 'руководствуясь' denotes following or taking into account advice during the action.
Руководствуясь советами экспертов, команда улучшила свой проект.
Guided by the advice of experts, the team improved their project.
This context shows 'руководствуясь' expressing reliance on internal beliefs during an action.