According to modern physics, particles are indeed associated with vibrations or excitations of fundamental fields that pervade the universe. Fields are a fundamental concept in physics used to describe the distribution of a particular physical quantity throughout space and time.
In quantum field theory, which is the theoretical framework used to describe fundamental particles and their interactions, each type of particle is associated with a corresponding field. These fields permeate all of spacetime, and when they are excited or vibrate, they manifest as particles.
For example, the electromagnetic field is associated with particles like photons, which are the quanta of light. The electron field is associated with electrons, the quarks field with quarks, and so on. Each field has its own set of particles associated with it.
Particles can be thought of as quantized excitations of their respective fields. Just as a vibrating guitar string can be seen as a collection of discrete energy packets or quanta known as phonons, particles are "bundles" of energy and momentum associated with their underlying fields.
Fields provide a way to describe the interactions and behavior of particles. They can interact with each other and exchange energy and momentum through their respective fields. These interactions are mediated by particles, which are essentially the carriers of the interactions between fields.
In summary, particles can be understood as vibrations or excitations of fundamental fields, and fields themselves describe the distribution of physical quantities throughout space and time. This framework, known as quantum field theory, provides a powerful and successful description of the fundamental building blocks of the universe and their interactions.